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vsock/test: Add test for connect() retries

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Deliberately fail a connect() attempt; expect error. Then verify that
subsequent attempt (using the same socket) can still succeed, rather than
fail outright.

Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Reviewed-by: Luigi Leonardi <leonardi@redhat.com>
Signed-off-by: Michal Luczaj <mhal@rbox.co>
Link: https://patch.msgid.link/20250128-vsock-transport-vs-autobind-v3-6-1cf57065b770@rbox.co
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Michal Luczaj 2025-01-28 14:15:32 +01:00 committed by Jakub Kicinski
parent 301a62dfb0
commit 4695f64e02
1 changed files with 47 additions and 0 deletions
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47
tools/testing/vsock/vsock_test.c
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@ -1746,6 +1746,48 @@ static void test_stream_transport_uaf_server(const struct test_opts *opts)
control_expectln("DONE");
}
static void test_stream_connect_retry_client(const struct test_opts *opts)
{
int fd;
fd = socket(AF_VSOCK, SOCK_STREAM, 0);
if (fd < 0) {
perror("socket");
exit(EXIT_FAILURE);
}
if (!vsock_connect_fd(fd, opts->peer_cid, opts->peer_port)) {
fprintf(stderr, "Unexpected connect() #1 success\n");
exit(EXIT_FAILURE);
}
control_writeln("LISTEN");
control_expectln("LISTENING");
if (vsock_connect_fd(fd, opts->peer_cid, opts->peer_port)) {
perror("connect() #2");
exit(EXIT_FAILURE);
}
close(fd);
}
static void test_stream_connect_retry_server(const struct test_opts *opts)
{
int fd;
control_expectln("LISTEN");
fd = vsock_stream_accept(VMADDR_CID_ANY, opts->peer_port, NULL);
if (fd < 0) {
perror("accept");
exit(EXIT_FAILURE);
}
vsock_wait_remote_close(fd);
close(fd);
}
static struct test_case test_cases[] = {
{
.name = "SOCK_STREAM connection reset",
@ -1896,6 +1938,11 @@ static struct test_case test_cases[] = {
.run_client = test_stream_transport_uaf_client,
.run_server = test_stream_transport_uaf_server,
},
{
.name = "SOCK_STREAM retry failed connect()",
.run_client = test_stream_connect_retry_client,
.run_server = test_stream_connect_retry_server,
},
{},
};